It's a little late for this idea, but I still wanted to share. You can change the shape to 4-leaf clovers, bunnies, eggs, pumpkins, etc. It's an endless idea.
They are made out of polyester and cotton knits with the raw edges outside and stuffing inside. Sew lace under the edge of the small heart. Attach the small heart to a large heart so that a sucker can fit. Sew both large hearts with 'wrong' sides together, leaving a space for stuffing to fit through. Stuff and sew space.